Ni battista scuri



(No Model.)

A. G. B. SOURI. DISTANCE MEASURING INSTRUMENT.

Patented June 14, 1898.

gnu-enter AXLE. Scuxi Witnesseslay Gjhfiwn on:

Hit or "n 65! UNITED STATES PATENT OFFICE.

ALESSANDRO GIOVANNI BATTI STA SCURI, OF GRAVEDONA,'ITALY.

DISTANCE-MEASURING INSTRUMENT.

SPECIFICATION forming part of Letters Patent No. 605,830, dated June 14,1898.

Application filed October 31, 1896. Berial No. 610,720. (No model.)

1Vented certain new and useful Improvements in Distance-Measurin gInstruments; and I do hereby declare the following to be a full,clear,

and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

My invention relates to distance-measuring instruments, and as itsapplicability to use with a firearm is self-evident the device is shownin the drawings in the'form of. a firei the actuating-drum and shows thebarrels in dotted lines. Fig. 2 is a top view of theconstruction inFig. 1. trating the manner of determining the unknown distance. I

In the instrument, which is in the form of a gun, G is the stock,provided in the ordinary manner with a trigger-guard E, trigger D, andhammers H H. Engaging said stock and pivotally connected thereto at thebreech end by. pivots af'm arebarrels Z P. In the stock G, under thebreech end of the said barrels, is an open chamber M, having ahorizontally-extending slot M in the bottom thereof.

J ournaled in the sides of the said chamber M is a shaft having mountedthereon a drum J. The said drum J has angular V-shaped slots at 71.therein, with the apex projecting in the direction of the muzzle of theaforesaid barrel, which are secured at either side of said drum J, andmounted on said shaft is a lever V, which extends downwardly through theaforesaid slot M, and has on its lower end a button or handle N. Securedto the under side of the barrels Z Fare downwardly-projecting pins V Vwhich pass through the top 1f said chamber M and enter the said slots atn Forward of the chamber M is an annularly- Fig. 3 is a diagramillusextendingrecess formed in the upper surface of the stock, andadjacent to the under surface of the barrels Z Z mounted in this recess,isa segmentally-formed slider or guidearm S, which is provided withslots 01 CF, in which pins .9 5 secured to the lower surfaces of saidbarrels, are adapted to work. At the forward end of the stockandsimilarly secured thereto as the slider is a segmentallyformed scale0, which, as may be readily seen, will aid the operator in exactlydetermining the distance of the required objectas, for example, in Fig.3, let Z be the object and A the position of the operator to ascertainthe distance A Z. First he sights one barrel at Z, and-moving the other,as will be hereinafter more fully described, he sightssome other object,as B, measuring the angle Z A B or angle as. Next he takes the positionat B and takes a sight from that point to both Z and A, measuring theangle Z B A or Z). Y is a rear sight point. Having determined the side AB and angles to b, which are measured by the scale C, secured to thefirearm, he can readily determine the distance Z'A by a simple formulaof trigonometry.

The mechanical movement of the instrument may be readily understood fromthe foregoing description taken in connection with the accompanyingdrawings. To adjust the barrel,'one finger is put in the ring-h, securedto the under surface of the stock and near its forward end, while withthe other hand supporting the instrument in the same position as aimingthe firearm the forefinger may be pressed against the button'or handle.N will readily rotate the drum J, guiding the pins V V in the groovesthereof, and thus either drawing the barrels one toward the other orforcing them apart.

Having now fully-described my invention, what I claim as new, and wishto protect by Letters Patent, is

1. As a new article of manufacture, a distance-measuring device having astock, a

chamber therein provided with a horizontal1y-.

extending slot, a shaft in v said chamber, a drum having an angular slottherein mounted on said shaft, a lever adapted to rotate said drum,barrels pivotally secured to said stock, pins on the under side of saidbarrels entering said drum-slots, and means for determining a stockprovided near its forward end with a chamber having ahorizontally-extending slot in vthe bottom part thereof, a shaft mountedin said chamber, a drum mounted on said shaft provided with an angularV- shaped slot, a lever rotatably actuating said shaft and drum andextending downwardly through said slot in the bottom of said chamber, abutton on the end of said lever; pins on the underside of said barrelsentering said angular slot, annularly-extending angular recesses in theupper surface of said stock near the central and forward endrespectively thereof, a segmentally-curved slider in thecentrally-located recess, said sliderbeing provided with slots therein;other pins 011 the under surface of said barrels adapted to enter saidslots, and a segmentally-formed scale in the remaining said angularrecess, all of the said parts being combined as and for the purpose asdescribed.

3. As a new article of manufacture a distance-measuring instrumenthaving a stock pivotally secured thereto, barrels, pins on the underside of said barrels; said steel: having a chamber therein under saidpins, a shaft mounted in said chamber, a drum on said shaft having anangular V-shaped slot therein adapted to receive the aforesaid pins,means for rotatably actuating said drum, a lever on the under side ofsaid stock near its forward end, annularly-extending recesses in theupper surface of said stock and a guidearm and a scalerespectivelysecured therein; all of the said parts being combinedsubstantially as described.

4-. As a new article of manufacture a distance-measuring instrument,barrels pivotally secured thereto, pins 011 the under surface of saidbarrels adapted to move in annular grooves in the upper surface of thestock, means for actuating said pins and a scale adapted to measure theangle included by said barrels, all of the said parts being combinedsubstantially as and for the purpose described.

In testimony whereof I affix my signature in presence of two witnesses.

ALESSAXDHO GIOVANNI llA'flIS'iA SUUIH.

'Witnesses:

.T. F. MoNAcnAN, A. MoLAnA.

